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API RP 581 - 3rd Ed.2016 - Add.2-2020 - Risk-Based Inspection Methodology

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1-28 API RECOMMENDED PRACTICE 581

5

Probability

4

3

2

RISK

High

Medium High

Medium

Low

1

A B C D E

Consequence

NOTE

See Table 4.1 and Table 4.2 for ranges in probability and consequence categories.

Figure 4.2—Unbalanced Risk Matrix Example

5

Probability

4

3

2

RISK

High

Medium High

Medium

Low

1

A B C D E

Consequence

NOTE

See Table 4.1 and Table 4.2 for ranges in probability and consequence categories.

Figure 4.3—Balanced Risk Matrix Example

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